100% Private
All processing happens inside your browser using the HTML5 Canvas API. Your images never leave your device and are never uploaded to any server.
Why choose us
The Best Free Gemini Watermark Remover
Our tool uses the same reverse alpha-blending algorithm used in professional image editors to precisely reconstruct the pixels hidden beneath Google Gemini's watermark logo.
Instant Results
The Gemini watermark removal algorithm completes in milliseconds for most images. No queuing, no waiting — results appear immediately in the preview panel.
All Image Sizes
Our tool automatically detects whether the Gemini watermark is 48×48 or 96×96 pixels and applies the correct alpha map, so it works on any resolution image.
Lossless PNG Export
Download your watermark-free image as a lossless PNG. No compression artifacts, no quality loss — the original pixel data is faithfully preserved.
Gemini & Nano Banana
Works with both the current Gemini watermark and the older "nano banana" logo variants used across Google's Imagen and Gemini image generation models.
No Sign-Up Needed
Open the page and start removing watermarks immediately. No account, no credit card, no email address required — ever.
Process
How to Remove a Gemini Watermark
Three simple steps to get a clean, watermark-free image from any Gemini-generated picture.
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Upload Your Gemini Image
Drag and drop your Gemini-generated image onto the left panel, click Browse to select a file, paste from clipboard (Ctrl+V), or paste a direct image URL. The tool accepts JPEG, PNG, WebP, AVIF, and GIF formats.
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Click "Remove Watermark"
Hit the glowing Remove Watermark button or the center action button between the panels. The tool automatically detects the watermark position in the bottom-right corner and applies reverse alpha blending to reconstruct the original pixels.
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Download Your Clean Image
The watermark-free result appears instantly in the right panel. Click Export or the PNG button to download a lossless copy to your device.
Background
What Is the Gemini Watermark?
When you generate an image using Google's Gemini models (formerly Bard) or the underlying Imagen technology, Google automatically embeds a small semi-transparent logo in the bottom-right corner of every output. This is often called the Gemini watermark or the "nano banana" watermark — a reference to the distinctive shape of the early logo icon.
The watermark is composited using an alpha-blending technique: each pixel in the watermarked area is a weighted mix of the original image pixel and the logo pixel. Because the blend formula is consistent and the logo image data is known, it is mathematically possible to reverse the operation and recover the original pixel values — which is exactly what this Gemini watermark remover does.
Watermark sizes vary by output resolution: images larger than 1024×1024 pixels receive a 96×96 px logo with larger margins, while smaller images receive a 48×48 px logo. Our tool detects the correct variant automatically.
FAQ
Frequently Asked Questions
Everything you need to know about removing Gemini watermarks.
Google's Gemini image generation models embed a small semi-transparent logo — sometimes called the "nano banana" — in the bottom-right corner of every AI-generated image. The watermark uses alpha blending to overlay the logo on the underlying pixel data, which is why it can be mathematically reversed.
Yes — 100% free, forever. There are no subscription tiers, no usage limits, and no premium plan. If you find it useful, you can optionally support the project by sharing it with friends.
No. Every computation runs locally inside your browser using the HTML5 Canvas API. Your image data is never sent to any server. You can even disconnect from the internet after the page loads and the tool will continue to work.
You can load JPEG, PNG, WebP, AVIF, and GIF images — any format your browser natively supports. The output is always exported as a lossless PNG to preserve the reconstructed pixel values exactly.
Yes. The tool automatically detects the watermark size: images larger than 1024×1024 pixels use a 96×96 px logo with 64 px margins; smaller images use a 48×48 px logo with 32 px margins. The correct alpha map is loaded automatically.
The reverse alpha-blending algorithm recovers the original pixels mathematically. For most images the result is nearly indistinguishable from the original. Very dark or very light areas near the watermark may show slight artefacts because of floating-point precision limits and JPEG compression in the source image.